ABAP Select data from SAP table PDCD1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PDCD1 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to PDCD1. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the PDCD1 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_PDCD1 TYPE STANDARD TABLE OF PDCD1,
      WA_PDCD1 TYPE PDCD1,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <PDCD1> TYPE PDCD1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PDCD1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PDCD1
  INTO TABLE IT_PDCD1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDCD1
*  INTO TABLE @DATA(IT_PDCD12).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_PDCD1 INDEX 1 INTO DATA(WA_PDCD12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PDCD1 ASSIGNING <PDCD1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDCD1>-MANDT = 1.
<PDCD1>-CASEUUID = 1.
<PDCD1>-CASEID = 1.
<PDCD1>-BUSINESSPARTNER = 1.
<PDCD1>-CREDITSEGMENT = 1.

ENDLOOP.

LOOP AT IT_PDCD1 INTO WA_PDCD1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDCD1-CREDITRISKCLASS, sy-vline,
  WA_PDCD1-CASEPROCESSOR, sy-vline,
  WA_PDCD1-CASERESPONSIBLE, sy-vline,
  WA_PDCD1-CASECREATEDBY, sy-vline,
  WA_PDCD1-CASELASTCHANGEDBY, sy-vline,
  WA_PDCD1-CASECLOSEDBY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDCD1 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_PDCD1 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_PDCD1 INTO WA_PDCD1.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field CASEID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDCD1-CASEID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDCD1-CASEID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDCD1-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDCD1-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PDCD1_STR, 
MANDT TYPE STRING,
CASEUUID TYPE STRING,
CASEID TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CREDITSEGMENT TYPE STRING,
CREDITRISKCLASS TYPE STRING,
CASEPROCESSOR TYPE STRING,
CASERESPONSIBLE TYPE STRING,
CASECREATEDBY TYPE STRING,
CASELASTCHANGEDBY TYPE STRING,
CASECLOSEDBY TYPE STRING,
CASEREASON TYPE STRING,
CASETYPE TYPE STRING,
CASESTATUSPROFILE TYPE STRING,
CASESTATUS TYPE STRING,
CASESYSTEMSTATUS TYPE STRING,
CASEPRIORITY TYPE STRING,
CASEESCALATIONREASON TYPE STRING,
CASECATEGORY TYPE STRING,
CASECREATIONDATE TYPE STRING,
CASELASTCHANGEDATE TYPE STRING,
CASECLOSINGDATE TYPE STRING,
CASEPLANNEDCLOSEDATE TYPE STRING,
TODAYDATE TYPE STRING,
CASEISCLOSED TYPE STRING,
CRDTMGMTBUSINESSPARTNERGROUP TYPE STRING,
CREDITDECISIONOBJECTTYPE TYPE STRING,
CREDITDECISIONSALESDOCUMENT TYPE STRING,
SALESDOCUMENTCREDITSTATUS TYPE STRING,
CREDITDECISIONREQUTCDATETIME TYPE STRING,
CREDITDECISIONFIRSTAPPROVER TYPE STRING,
CREDITDECISIONSECONDAPPROVER TYPE STRING,
CREDITDECISIONFIRSTAPPRVLSTS TYPE STRING,
CREDITDECISIONSECONDAPPRVLSTS TYPE STRING,
CREDITDECISIONCOMPLETEDBYUSER TYPE STRING,
CRDTDCSNAPPRVLPROCISOVERRULED TYPE STRING,
STATICLMTUTILZNCRDTCHKISFAILED TYPE STRING,
MAXDOCAMOUNTCREDITCHKISFAILED TYPE STRING,
DYNLIMITUTILZNCRDTCHKISFAILED TYPE STRING,
MAXDUNNINGLEVELCRDTCHKISFAILED TYPE STRING,
OLDESTOPENITEMCRDTCHKISFAILED TYPE STRING,
DAYSSLSOUTSTDGCRDTCHKISFAILED TYPE STRING,
OTHERCREDITCHECKISFAILED TYPE STRING,
OVERDUEOPENITEMCRDTCHKISFAILED TYPE STRING,
CREDITDECISIONCURRENCY TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
OPENCREDITAMOUNT TYPE STRING,
CHECKEDCREDITRISKAMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDCD1_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_PDCD1_STR-MANDT sy-vline 
WA_PDCD1_STR-CASEUUID sy-vline 
WA_PDCD1_STR-CASEID sy-vline 
WA_PDCD1_STR-BUSINESSPARTNER sy-vline 
WA_PDCD1_STR-CREDITSEGMENT sy-vline 
WA_PDCD1_STR-CREDITRISKCLASS sy-vline 
WA_PDCD1_STR-CASEPROCESSOR sy-vline 
WA_PDCD1_STR-CASERESPONSIBLE sy-vline 
WA_PDCD1_STR-CASECREATEDBY sy-vline 
WA_PDCD1_STR-CASELASTCHANGEDBY sy-vline 
WA_PDCD1_STR-CASECLOSEDBY sy-vline 
WA_PDCD1_STR-CASEREASON sy-vline 
WA_PDCD1_STR-CASETYPE sy-vline 
WA_PDCD1_STR-CASESTATUSPROFILE sy-vline 
WA_PDCD1_STR-CASESTATUS sy-vline 
WA_PDCD1_STR-CASESYSTEMSTATUS sy-vline 
WA_PDCD1_STR-CASEPRIORITY sy-vline 
WA_PDCD1_STR-CASEESCALATIONREASON sy-vline 
WA_PDCD1_STR-CASECATEGORY sy-vline 
WA_PDCD1_STR-CASECREATIONDATE sy-vline 
WA_PDCD1_STR-CASELASTCHANGEDATE sy-vline 
WA_PDCD1_STR-CASECLOSINGDATE sy-vline 
WA_PDCD1_STR-CASEPLANNEDCLOSEDATE sy-vline 
WA_PDCD1_STR-TODAYDATE sy-vline 
WA_PDCD1_STR-CASEISCLOSED sy-vline 
WA_PDCD1_STR-CRDTMGMTBUSINESSPARTNERGROUP sy-vline 
WA_PDCD1_STR-CREDITDECISIONOBJECTTYPE sy-vline 
WA_PDCD1_STR-CREDITDECISIONSALESDOCUMENT sy-vline 
WA_PDCD1_STR-SALESDOCUMENTCREDITSTATUS sy-vline 
WA_PDCD1_STR-CREDITDECISIONREQUTCDATETIME sy-vline 
WA_PDCD1_STR-CREDITDECISIONFIRSTAPPROVER sy-vline 
WA_PDCD1_STR-CREDITDECISIONSECONDAPPROVER sy-vline 
WA_PDCD1_STR-CREDITDECISIONFIRSTAPPRVLSTS sy-vline 
WA_PDCD1_STR-CREDITDECISIONSECONDAPPRVLSTS sy-vline 
WA_PDCD1_STR-CREDITDECISIONCOMPLETEDBYUSER sy-vline 
WA_PDCD1_STR-CRDTDCSNAPPRVLPROCISOVERRULED sy-vline 
WA_PDCD1_STR-STATICLMTUTILZNCRDTCHKISFAILED sy-vline 
WA_PDCD1_STR-MAXDOCAMOUNTCREDITCHKISFAILED sy-vline 
WA_PDCD1_STR-DYNLIMITUTILZNCRDTCHKISFAILED sy-vline 
WA_PDCD1_STR-MAXDUNNINGLEVELCRDTCHKISFAILED sy-vline 
WA_PDCD1_STR-OLDESTOPENITEMCRDTCHKISFAILED sy-vline 
WA_PDCD1_STR-DAYSSLSOUTSTDGCRDTCHKISFAILED sy-vline 
WA_PDCD1_STR-OTHERCREDITCHECKISFAILED sy-vline 
WA_PDCD1_STR-OVERDUEOPENITEMCRDTCHKISFAILED sy-vline 
WA_PDCD1_STR-CREDITDECISIONCURRENCY sy-vline 
WA_PDCD1_STR-DISPLAYCURRENCY sy-vline 
WA_PDCD1_STR-OPENCREDITAMOUNT sy-vline 
WA_PDCD1_STR-CHECKEDCREDITRISKAMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.